Some things I've seen around the web lately indicate that if an XY doesn't fap to orgasm at least once every few days, testosterone levels build up alarmingly after about a week or so (like 30-50% above normal). That's fine if you're a sissy and being kept in chastity for the express purpose of making you horny, but for those actively transitioning/on female hormones, it's kind of counterproductive.

Gurls, if you're on female hormones, milk those berries at least every few days to keep your T levels down; your tits will thank you!

XOXO PHM