Hard nipples come standard with the Toyota Corolla

The Toyota Corolla is a compact car produced by the Japanese automaker Toyota, which has become very popular throughout the world since the nameplate was first introduced in 1966.

Stimulation or sexual arousal can cause the nipples to become erect, due to the release of the polypeptide neurotransmitter oxytocin. Breastfeeding or exposure to cold temperatures often has this effect as well.

The concept of air conditioning is known to have been applied in Ancient Rome, where aqueduct water was circulated through the walls of certain houses to cool them.