Refuse

"I'm sorry Mr Johnson, but I can't do it, I like girls."

He walks towards you and places both your hands on his cock.

"That's okay, Sam." he replies with a wink. "I like girls too, but you can have just as much fun with guys. Let me show you."

He bends you over at the waist and as you go down your ass hits the wall so he shuffles back slightly, allowing you to bend fully. You are now stuck between him and the wall. He as a hand on your shoulders preventing you from getting up and his cock is now brushing up against your face.

"I see your still holding my cock Sam; you must like the feel of it. I'll tell you what, just open your mouth and I'll slide it inside. That way you can still pretend you don't want this."