Fenris doesn’t really talk much about sex stuff from when he was younger because years before he meets Miorjah his sex drive basically gets shut off. He simple doesn’t have any interest. When he was young his sex drive was high and he slept around a lot, and them being young people in a sexually liberal society they competed for women and occassionally had threesomes but never had any interest in one another. Miorjah is a very jealous individual and thought of him having exes makes her upset so him being friends with someone he had a threesome with just isn’t something he brings up lol