The last one first.
Satan doesn't punish sin. Hell was created as a place, separate from God. to punish created beings that rebelled against God. Initially that only consisted of Satan and those of the angels that rebelled against God and His rules.
Second one next...
Asexual. One not interested in, thinking about, or participating in sex?
The Bible speaks of the "eunuchs".
Those that, through choice or not, abstain from sex, are not frowned upon.
"Femboys" needs context. How do you define the term?