I have this vision when sbn and yjn are farmacist and want to test their new aphrodisiac formula, so they make bg as their subject for experiments. Test how long the aphrodisiac take the time until bg H****, sbn and yj take turns to fck bg to test how much bg can hold and accept their seeds, and test how many time their fck until bg could get pregnant. The thing is, sbn and yj find bg too pretty even when he is pregnant, so they make him swallow the pill again, and fck bg when bg belly is big. Fiuh... wdyt?