I'm gonna go out on a limb here and say that if your sons are fucking some SJW, they're already in too deep.
Ironbite-seriously that's a crazy I wouldn't want to stick it into.
Something else I never had to worry about growing up but I'll have to teach my sons. If she says yes, get it in writing and notorized.
For all the troglodyte menz out there, consent is pretty simple:
1) No means no.
2) Yes can mean yes, unless it means no, and it can mean yes and actually mean no later, which makes you a retroactive rapist.
EDIT: 3) Possibly most importantly, individuals can decide yes but the social justice collective can overrule and decide it meant no, which means no.
Why can't the troglodytes understand three simple rules?