re your previous comment re mohammad and Ayesha - you are free to interpret the situation as you do. but there is also another more objective explanation. Ayesha's father was a powerful man in his own right separate from Mohammad - the move that Mohammad makes which is to take Ayesha into his own household from a very young age for later marriage was made to consolidate his power and position as leader.
this worked and while he was alive there was a measure of unity between the two leaders. After he died Ayesha's father was seen as heading up a different group from that of Mohammad - although both groups do claim allegiance to Mohammad they can be somewhat opposed - Iran v sunnis for example.
on this understanding Mohammad did not take Ayesha into his own household for sex but as a politically strategic move.