I can't believe we're doing this. Well, all I'm going to do is sit and watch while Derek and Becca fool around. This was my bright idea, so I just need to get over it and try not to get jealous. I've always loved my stepdad and after spending last night and this morning fucking him, we've entered a new phase in our already complicated relationship. I know he loves me, not Becca, so anything that happens between them in his bed is just physical pleasure. I'm here to make sure things don't go too far.
Derek is lounging in his bed wearing only his navy blue boxers, flipping through the channels on TV while we wait for Becca to come in. His sculpted muscles are mouthwatering. He's the hottest man I've ever seen and it's hard to believe he's mine. At thirty-six he's in his prime and I know he's fucked a lot of women since my mom died ten years ago. He seemed to love being with me last night and I plan to do whatever it takes to keep him.
After our shower this morning I asked Becca if she would like to make out with Derek. He went out to get bagels for breakfast so I could talk to her alone. Becca quickly agreed - she's had a thing for my stepdad for a while. I told her he wouldn't take her virginity, but he could make her feel good. The three of us didn't mention their upcoming liaison over breakfast, but it was on all of our minds throughout the meal. Becca's face was bright red the entire time. Derek finished eating and said he would wait in the bedroom and we could come in when we were ready.
I didn't have any sexy lingerie to let her borrow, but I had recently bought some new thongs, so I gave her one, along with a lacy camisole and told her to come to Derek's room when she was ready.
I hear the bedroom door open and I look over at Becca. Her auburn hair fell in soft waves down her back. Her tits aren't quite as big as mine, but my black cami looks good on her. Derek reaches his hand out to her and she shyly walks over to join him in bed.
"Everyone is still ok with this?" Derek looks over at me as Becca gets in bed with him.
Becca says yes. I merely nod in agreement. I don't trust myself to speak. Part of me is not ok with this, but I think I'll be fine once they get started.
Derek pulls Becca onto his lap so that she's straddling him. He kisses her softly and I hear him instructing her to open her lips. They spend the next several minutes exploring each other's mouths. Becca's hands thread through his hair. Derek cups her bottom in his large hands. This isn't so bad.
Derek breaks their kiss. "Are you ready for more sweetheart?"
"Yes." Becca whispers.
Derek moves one of his hands and it disappears between their bodies. "I'm just going to play with your pussy for a while. Let me know if you're uncomfortable or don't like it."
From this angle I can't see what he's doing. They kiss again and Becca starts to moan and her hips gyrate. I know how talented Derek's fingers are. My pussy involuntarily twitches with envy.
"You're nice and wet now Becca. I'm going to slip a finger inside." Becca's moans are louder. "Mmm, you have a tight little cunt sweetheart. Ride my finger." Becca's hips buck against him. After a few minutes Derek tells her he's inserting another finger. "When a man pushes his dick into you it will be a lot bigger than my finger. This will stretch your cunt a little. Do my fingers feel good sweetheart?" Becca screams yes and rides him harder. She pulls off the cami and her tits bounce in Derek's face, he leans forward to suck first one nipple, then the other. For a shy, inexperienced girl, she sure is catching on quick. Their play continued - her moans sometimes drowned out his whispered instructions. I don't like being excluded from their intimate discussion. She finally screams as Derek gives her an orgasm. Maybe they're done now. It's still good, I can handle this.
"That was hot Becca - watching you come. You want another orgasm sweetheart?"
"Yes! Yes please."
Derek lifts her off him. "Lie down and spread your legs."
Becca does as she is told. Derek bends her knees and pushes her legs farther apart. I can smell her arousal from here. Her pussy is wide open now. The thong she's wearing is soaked with her juices. "You smell good Becca. I need a taste." Derek buries his face in her wet snatch.
I never said he could do that. I'm not ok with this, but I don't say anything.
"Oh!! Mr. Ryan, your tongue feels so good."
Derek's deep chuckle sends a shiver down my spine. "Sweetheart, I'm eating your pussy. I think it's ok to call me Derek now."