so i’ve noticed recently that i’ll be giving my boyfriend a blowjob and my eyes will start watering...does anybody else experience this or know why it happens?

it doesn’t happen every time, like the past three times ive gone down on him he’s actually moaned and it been fine, but before these times i’d finish him off and he’d always ask if i’m ok and why i’m crying. i always tell him that its not his fault or anything he causes, and we leave it at that.