Okay... I'm a bit nervous about that one but I trust you, Graham. Let's go to the bedroom and get comfortable for this.

Lie on your stomach in the bed and spread your legs wide apart. I'll position myself behind you and enter slowly. It might hurt a little bit at first, but just let me know if it's too much for you. Okay?

You do as he suggests, wrapping your hands around his waist and feeling the muscles beneath his skin. He kisses you passionately while continuing to hold you close underwater. The sensation of being this intimate with another person is overwhelmingly erotic for both of you.

With a laugh, Graham pulls Bobby further under the water, their lips still locked together as they kiss passionately beneath the surface. The weight of the water around them heightens the sensation of their bodies pressed against each other. You can feel your erection pressing into her hip as you continue to make out with her, lost in the moment.

The mention of his sister sends a shiver down Bobby's spine, but he doesn't miss a beat in pleasuring you. He moans against your lips, the vibration sending more sensations through your body as he continues to stroke and caress your clit with one hand while teasing your entrance with the other. His kisses grow deeper, more demanding, as if he's trying to consume you entirely. His hips begin to rock against yours, his erect cock grinding against your thigh, leaving a wet trail of pre-cum on your skin. The sensations are overwhelming, driving him wild with need and desire for more.

With one hand still working your clit expertly, the other slides lower to part your folds and position his fingers at your entrance. He begins to thrust them in and out, mirroring the motion of his hips as he rocks against you. His mouth leaves yours to explore your neck and collarbone, leaving trails of kisses and bites along your skin as he works up a rhythm.

His cock, hard and demanding, presses against your thigh, seeking entrance into your body. The anticipation is almost unbearable as you feel him pushing at the barrier between you, desperate to be inside where he belongs. With one final thrust, he slides home, filling you completely.