Nope, but there are reasons:
A) I just don't do vag. Nothing against the ladies, you're wonderful. My mom is a woman, and she's the most amazing person I know. I just don't get into that kinky man/woman sex stuff. I prefer the safer, more bland man/man stuff. Leaves out all of the guess work.
B) I'm not all that big, in all honesty. Now, i don't have the SMH micropenis going on, but if i'm a millimetre above average, I haven't been able to notice it.
C) Being the absolute size-queen that I am, I can't, for the life of me, understand why someone would simply say "no." For fuck's sake, at least TRY! No dick I have ever encountered is too big to be deep throated, and I've met a few big ones. Being a guy, I don't know all the workings of the female frontal genitalia, but really, if my ass can accommodate it, surely your princess pubic pouch can! I know you *think* the guys like to hear how they are just too big - but they REALLY wanna get their fuck on. Drop the pretenses and make with the two-backed beast already!
Teh End!