I pretended to go to the bathroom, then discreetly vomited the milk back up.
Afterwards, I "groggily" lay back down, "falling asleep" within minutes.
About half an hour later, Sophie stirred.
She repeatedly checked my face to ensure I wouldn't suddenly wake up, then relaxed.
"He finally fell asleep, but I was dying to hold it in!"
I peeked through half-closed eyes as she changed into a lacy negligee and opened the guest room door.