a "sticky ricky"
Covering your penis with honey, then fucking someone in the ass or vagina, nutting in them, then slurping the sperm back out and spitting it into their mouth. Then you repeat it until someone swallows.
My friend did this to his girlfriend and she had to swallow his sperm.
I tried this with my girlfriend and she laughed and said I was crazy.
My brother did this to his sister and they both ended up vomiting.