Not tonight, Adam

After a few days, the Lord called to Adam and said, "It is time for you and Eve to begin the process of populating the earth, so I want you to kiss her."
Adam answered, "Yes, Lord, but what is a 'kiss'?"
The Lord gave a brief description to Adam, who then took Eve by the hand and led her to a nearby bush.
A few minutes later, Adam emerged and said, "Thank you, Lord. That was enjoyable."
And the Lord replied, "Yes, Adam, I thought you might enjoy that. Now I'd like you to caress Eve."
And Adam said, "What is 'caress'?"
So the Lord again gave Adam a brief description and Adam went behind the bush with Eve.
Quite a few minutes later, Adam returned, smiling, and said, "Lord, that was even better than the kiss!"
And the Lord said, "You've done well, Adam. Now I want you to make love to Eve."
And Adam asked, "What is 'make love' Lord?"
So the Lord again gave Adam directions and Adam went again to Eve behind the bush, but this time he reappeared in two seconds.
And Adam said, "Lord, what is a 'headache'?"