You catch her in the shower, masturbating and moaning your name!

After sending Chris away to dose Mr Foreman, you decide to go back to your room and plan how you were going to seduce the rest of the family. On your way back, you go past Chris and Rebecca's room where the door was open but the shower was running, you knew it wasn't Chris as he had his orders so you knew it was Rebecca, silently entering the room, you pulled the door shut and locked it, not wanting to be disturbed.

As you got to the shower, you got a pleasant surprise.

"Oh God, John fuck me, breed me!"

You had to be dreaming, so you got a bit closer and saw a gap in the shower curtain, you saw Rebecca frantically fingering herself as she moaned out your name. Even though you had not that long ago fucked Chris, you could feel your 9" cock rising up again, quickly stripping off, you entered the shower and got behind Rebecca, grinding your cock up and down her well lubed butt cheeks.

"W-Who's there?"

"It's me Rebecca, do you really want me to breed you?"

"Oh fuck yes! Chris's little pencil dick won't stay hard enough to get the job done and I'd heard through the grapevine that you've got a big cock and know how to use it. I'm at peak fertility right now, so what are you waiting for?"

Pushing Rebecca so that she was bent over, you told her to brace herself, she looked back at you and winked as she put her hands on the shower wall before swaying her ass to tempt you even more. You stopped her by holding her hips steady as you lined up your bare cock and eased it home, making her whimper as she felt you bury your bone all the way in.