You both think on who should wear the strap-on, and Susan finally decides. "I think you should use it first," Susan says. "Why me?" You ask. "Well you bought it, so I want you to use it on me," Susan answers. "Besides, I always wondered how it would feel to have a horse penis in my vagina." "You are a crazy girl," You comment. "I like that."
As Susan gets on the floor, you put on the blue strap-on, and head towards her, while her butt was sticking out at you. Seeing the hole in your girlfriends butt, you shove the penis end of your strap-on, and begin to penetrate her. "Oh yes," Susan says. "Fuck me like a stallion. A nice muscular stallion if it was also part female." You smile, and penetrate Susan more, until you get to her g-spot, which causes her to cum. However instead of semen, what came out was blue rubber latex liquid.