can't get erection after receiving anal sex?

I'm asian mid 30s, 5'7" 150lb, almost hairless naturally but shave everything. I work out a lot, but kind of look like one of those fitness women bodies because i am on an all soy diet and sometimes take estrogen supplements. My penis is small, 3.5" erect, but almost always flacid at around 2" because I have an erection issue due to low testosterone levels. If I wear a wig and put on makeup, I can easily pass for an attractive asian female, a lot due to no facial hair growth and I sometimes pluck my eyebrows. I received anal sex periodically but then can't seem to get an erection either during or after the anal sex. Does receiving anal sex affect ability to get an erection? Is it because I am deep down not gay? I have low testosterone so not sure if thats why. By the way, sometimes after receiving it, I receive very long rough oral, I'm flacid entire time, but sometimes can ejaculate with my penis completely soft. My partner likes it a lot but makes me feel very inadequate sexually.

does anyone know the fitness woman who lifted pat sajak on wheel of fortune a long time ago?

Why is god torturing men, which ever god you believes in?

Biologically speaking, men produce billions of sperm per day. We secretly want each of those sperm to impregnate a different lady. We're kind of programmed to spread our seed with as many different women as possible to increase our own sexual fitness. Women produce much less eggs compare to men and they automatically discharge their unused eggs thus less sexual desires compare to men; Men somehow need to shoot out all those unused billions, trillions sperm cells and we only get to live with one women in our life time? Men are also much vulnerable to visual temptation, so is it our fault to wanting to have sex with many women? or is it because of bad blueprint? if there is god he designed us like that... you know...