Honey, darling, schnookums … don’t take it that way!! You ain’t stupid - it’s not one of those things you’re expected to know. And besides, I’d much rather have erections in inappropriate situations than not have them in appropriate ones.
And perhaps I overstated the “parking situation”. Hell, I wasn’t breathing heavy and fogging up the windows because groping my girlfriends was physically strenuous. Absolutely it feels good to be turned on even if the women isn’t twirling my tallywacker (I got giggles writing that). It’s just that it isn’t the “oh god, I’m going to come” kind of pleasure. It’s much more mental, part excitement, part “doing something bad”, part “oh my god, I’m really kissing her breasts”. Hell, I knew she wasn’t going to be “galloping towards the penis”, and I still very much wanted to go parking.
Sua