Well, you should let people cum on you, at the least.
Onan was slain by God for spilling his seed on the ground. Although that's a catholic view, really.
context please:
God was like "this girls hubby died impregnate her so your generations can contine"
*cums in grass*
"alright forget you dude"
I think her hubby was the dudes brother or something
it was a culture thing at the time and a "do what god tells you please" thing
I think this is right
people use this as an argument against religion all the time