Inside her (cowgirl).

"I believe I remember you promising to ride me until I came," you say. "Unless you were all talk, that is."

"Oh honey, you're in for the ride of your life with me. You have no idea the core exercises I do at the gym. Now, lie down for me."

Not needing to be told twice, you lie back down on the bed. Grace climbs up after you and straddles you. She takes your cock in her hand and guides into her pussy as she sits down. You both moan in unison again as you enter her. "I don't think I'm ever going to get tired of that feeling," she says. For your part, you agree wholeheartedly. Once she's situated on you dick, she says, "Now for the question of the day. Hard or gentle?"

"You've talked up your core strength, so I think I have to go with hard."

She winks at you. "That's the right answer, boy."

She grinds a bit as a test, making sure she's still properly lubed up down there. Then she leans forward and rests her hands on your chest for support. "I'm gonna ride you like I ride my dildo when I really just need to hammer one out in a hurry," she says.

And then she goes for it. She begins riding you hard. Ecstasy washes over your body, sending you into a daze as what little capacity for rational thought you have left considers that she really wasn't overselling her skills. You've never been ridden like this in your life and the person doing is your hot friend that you've had a crush on for a while. What a wonderful day this has ended up being.

You don't last long under her relentless ****. If your brain were functioning more, your pride might have pushed you to hold out as long as you could, but it isn't. So after probably only a minute or so, you find yourself unloading inside her pussy. Your cum plasters her insides and dribbles out around your cock. As she feels your cum fill her, she slows down her grinding with a satisfied grin on her face. She comes to a stop and leans forward, her hair falling down around your head so that all you can see is her face.

"Told you."