Read it again. Naomi, Ruth’s mother-in-law instructs her to sneak into where Baoz is sleeping and to give him a hummer. Boaz’s orgasm awakens him, and he is delighted. Ruth, being a Moabite (i.e. descendent of the incestuous relationship between Lot and his daughter) must have been greatly skilled. At least, Boaz says so. He offers to marry Ruth if the guy with a better claim to her let’s her go. Then he talks that guy out of marrying her. Thus begins the line that leads to David (and the lord himself).
Please.
That is so stupid.