Young people have so much to learn when it comes to sexually transmitted diseases. This Belgian PSA by ad agency Boondoggle for Sensoa tries to educate teenagers and youngsters about a common sex-ed question--whether STDs can be transferred through swallowing semen--with a very tongue-in-cheek approach.

The unorthodox PSA's art direction makes use of the fact that most teenagers don't think with their brains before jumping into things, especially when it comes to sex.