Post sexy time men have a refractory period (natures cockblock if you will), which is the perfect opportunity to snack and sleep OR snack and recharge to go again.
Power Reactant Storage Assemblies are sets of oxygen and hydrogen tanks that provide reactants for electrical power generation and basic life support to the shuttle crew.
The period of apathy after a male ejaculates due to the massive release of dopamine neurotransmitters into the brain. Comes from the psychological term "refractory period."
"Yo dawg, how was the girl last night?"
"Really good, I'm totally refractin' right now."
"Sick man! You did her?"
"Nah dude, I kicked her out of my house and then masturbated furiously."
"Oh... that's odd."