Susan looked at him, then at Mark, waiting for the boys to make the first move.
'I know you and Susan have been making it together,' Mark said to his brother. Steve blushed to the roots of his hair and looked away. 'Hey, it's nothing to be ashamed of, kid,' he continued, playfully punching the boy on the shoulder. 'Mom and Dad aren't going to know about it.'
'You make it sound so… SQ dirty. It's not. Not at all!'
'I know, I know, there's no need to explain to me.' He turned to Susan. 'I think he should know, baby.' Susan nodded, putting a protective arm around the him.
'I know you and Susan have made it too.'
Mark was taken aback. 'You do?'
Susan echoed, 'You do?'
Steve smiled. 'Not for sure, but I sort of sensed it.' He shrugged his shoulders. 'I knew you'd been up to something. I figured it had been when I was out shopping with Mom and Dad. When I came back Susan seemed different. And you had a funny look on your face. A guilty look. But like you didn't care if you were wrong.'
Mark smiled. 'I didn't realize my little brother was so perceptive.'
A smiled played at the corners of Steve's mouth. 'It was just a feeling really. Just something I couldn't put my finger on.'
'And you're not mad at us?' Susan asked anxiously. 'At me?'
Steve shrugged. 'No. I know how you feel about me.'
'You're not jealous?'
Steve looked over the girl's shoulder to Mark. 'Maybe just a little.'
Mark smiled. 'Me too,' he said.
'I don't believe this!' Susan said happily. She kissed Steve, then Mark.
'Why don't we stop kidding ourselves,' Steve added. 'It's going to happen sooner or later.'
'What is?' Susan asked, her heart beginning to pound.
Mark held his breath, waiting for his brother's next words.
'Us. I mean the three of us. Why don't we be honest about it? Susan digs us both and we both dig Susan. Why don't we… I mean… why not make it together, the three of us…' His voice trailed off and he blushed again.
Mark looked at Susan. He reached out and took her hand, giving it a squeeze.
'You want me to make love to both of you? At the same time?' Susan couldn't believe her ears.
Steve smiled at Mark. 'I think it would be more like us making love to you at the same time.'
'That's the best idea I've heard all day!' Mark said.
'Well?' Steve asked Susan. 'What do you think?'
'Yeah!' Mark piped in. 'How about it?' Susan rubbed her legs together. The familiar tingling sensations returned full force between her legs.
'When?'
The boys smiled. 'Now!' they both chimed in. 'It's too dangerous out here. How about in the trailer. But what about your parents?'
'Oh, you know them,' Mark said, getting to his feet, his prick still hard and pulsating. 'They only come out of their rooms to eat and sleep!'
'Then let's go!' Susan said.
Just as they were approaching the house the boys' father stepped out onto the porch. Susan and the two boys slowed their pace.
'Damn!' Steve said under his breath.
'I knew it was too good to be true,' Mark said. 'I bet they want us to go into town for something.'
'Have a good swim?' the boys' father asked. Like his sons, he was lean and handsome. Susan ran to him and they embraced. 'Having fun?' he asked, looking down at her.
'Yes.'
'Good. I think your mother's supposed to call tonight to say hello. So try to stay around the house.'
'Okay.'
'Would you boys mind doing me a favor? Maybe you wouldn't mind walking into ton for a few things. Your mother's cooking up something special tonight and needs these.' He reached into his pocket and fished out a list of groceries.
'I'd drive down myself,' he said, handing the list to Mark, 'but I'm in the midst of writing. I really don't want to break away from it now.'
'Inspiration?' Steve said, smiling. That was their father's catch word.
He smiled. 'Inspiration.'
'Sure, we'll go,' Susan said, hiding any disappointment from her voice.
'Thanks a lot. See you later then. I've got to get back to the old typewriter.'
'Shit,' Mark said after his father had disappeared back into the house. 'That takes care of that.'
'There's always tonight,' Susan said hopefully.
Mark shrugged. 'Yeah, I suppose.'
'We'll make it a date,' Susan said, smiling brightly.
'I wish there was some place we could go,' Steve said as they started walking toward town. 'But all the deserted spots are down the beach, just the opposite way.'
'Well,' Susan said, 'the sooner we get to town the sooner we'll get back.'
'Yeah, but Mom'll probably be taking a break to get dinner prepared,' Mark pointed out.
'We'll go upstairs to my room. She won't bother us,' Susan said, eying Mark's bulging crotch. Her legs suddenly felt rubbery and weak. She wanted to make it with the boys just as badly as they wanted to make it with her.
They shopped in the local grocery, where the boys' parents could buy on credit. Mark carried one grocery bag back, Steve the other.
After they had unloaded the groceries in the kitchen and announced they were all back, they ran up to the girl's room. Susan locked the door.
'I hope this is going to be safe,' Steve said nervously. 'All we have to do is get caught once.'
'Don't worry, Steve,' Mark said, sitting expectantly on the edge of Susan's bed. 'We'll be okay. We'll hear anyone coming up the stairs. Anyway Dad'll be glued to his typewriter until dinner's ready, and dinner won't be ready until Mom's spent hours getting it ready!'
'Profound observation,' Steve replied.
Now that it had finally come to the moment no one seemed to know what to do first. Steve took the initiative, putting an arm around Susan and drawing her close to him. They kissed, Susan sucking on the boy's wet tongue.
Mark started to undress.
Susan pulled off Steve's T-shirt and ran her hand over his bare chest. Then she undid his shorts.
Steve, meanwhile, undid her bikini top and smiled at his brother's expression once her tits tumbled out to view. Steve lay back on the bed and pulled the girl down next to him. She pulled down his bathing briefs, which he had kept on under his cut-offs, and his slim young cock made a loud slap as it fell back against his belly.
She ran her hand up and down his smooth thighs before cupping his balls and licking his cock-shaft with the tip of her fleshy tongue.
Mark, fully naked now, his thick cock standing tall and firm from amidst his pubis bush, pulled down her bikini bottoms and reached around to slip two fingers into her cunt. She was invitingly wet and hot.
Susan went down on Steve and Mark watched his brother's lean young body writhe with pleasure as he sent his cock in and out of her mouth.
Mark finger-fucked her until she moaned and closed her eyes. Her belly muscles tightened perceptively and her asscheeks hollowed out. When she climaxed she let out a surprised yelp of pleasure.
'Let me fuck her first,' Mark pleaded with his brother. 'Please.'
Steve nodded reluctantly and watched his brother position himself between Susan's shapely legs. Steve was mesmerized by the sheer size of his brother's hard cock. He wondered how Susan's cunt could accommodate it all without being ripped in half.
