Teacher: Pedro! What is sex?

Pedro: Ang sex ay parte ng ating katawan. Ito ang nagsasabi kung tayo ba ay babae o lalaki.

Teacher: Good. Juan! Stanap.

Juan: *tumayo*

Teacher: For you what is sex?

Juan: What is sex? Sex is like a math. Add the bed, minus the light, subtract the clothes, bring down the underwear, divide the legs, find the decimal point and get ready to multiply.

Teacher: GET OUT!!!