I'm pretty sure I would. I've done it before. I was visiting this gal about 60 miles south of where I live (actually was meeting a 3 other college friends....2 gals and a guy a fraternity brother....I came along so we could "double date" and make the other couple more comfortable). It got to be about midnight and I had to drive back. We were heading back north and she says, "why don't we get a hotel room when we get back to Faribault. I'll even buy." I said, "no, I really can't. I have to work in the morning." (which was not a lie). She looks over and says, "I could go down on you right here in the car." After almost driving off the road and immediately getting a throbbing hard on, I said, "I can't believe I'm going to say this, but I just can't."
We drove in relative silence the last 10 miles, she asked me if I wanted to reconsider, whe we got to Faribault, and I turned it down. Drove home the last 35-40 miles with a raging hard on. Guess what I did the first thing I got home? You're damn right.
I cheated on a gal one time.....in college. It SUCKED. Never felt worse in my life and things just are never the same. And I can't handle the guilt.
FYI, I did end up breaking up with my gal at the time and we eventually got together (she was back at college....she was two years younger than me....I went down to visit when her roomie was gone for the weekend.....it was worth the wait).
you are a TRUE gentleman my friend. we need more of you in this world