Using a woman's period blood as lube for anal sex.
"Bro, I just gave Lucy a chocolate valentine! She didn't have time to react! It was epic "
When you cum into a bowl, then use a used heroine jab to collect the cum.
Buy some caramel chocolate and use a separate needle to dispose of the caramel.
Inject the cum into the chocolate and give it to your valentine!
I gave gracie some special valentine chocolates