What factors generally play into this? When I'm fucking my boyfriend he's rock hard the entire time. He doesn't fuck me but when I'm playing with a dildo I get to be as flacid as if I was standing naked outside in a snowstorm. I thought maybe it might have to do with the shape the person is in, but I've seen people in great shape have the flacid 'issue' while some others who we'll classify as less than healthy eaters having no problem with an erection.
It's not a major concern to me, I'm just a little curious is all.
It's not a major concern to me, I'm just a little curious is all.