As you continue to suck Damon's penis, you feel your own shrinking, as if it wasn't small enough. Then you feel your butt getting rounder, while your face becomes more feminine with thinner eyebrows, and a small nose. Just then, you feel your own hair grows down to the middle of your backside, and becomes a lighter shade of brown.
Next round lumps grow around your nipples, as they expanded to a bigger shape, and became a bigger size than they were as they stopped becoming an DD-Cup sized pair of breasts, and making your one-piece fit like a glove. Finally, Damon comes down your throat, causing you to swallow, and your penis leaves behind a small pussy in it's place. You take your mouth off of Damon's penis, and then land near his crotch. "That felt good," You say, then find your voice has become a higher pitch than it was before.
You gasp, and then notice the body change you went through. "What the hell happened to me?" You ask. "I think the water, combined with the semen from my dick caused you to switch genders while you were in the pool," Damon answers. "Oh my god, do you still love me?" You ask. "Well, I'm bisexual so, I'll except your new form," Damon answers.