I sat down on the bed and took off my shirt.
He sat up on the bed and took off his shirt.
I started to take off my shirt, but she stopped me.
Why should a man be allowed to take his shirt off on a hot day and a woman not?
He had taken off his shirt and given it to her to hold.
"What would you do if I took off my shirt right now?"
He decided that taking off his shirt might be a good idea.
He took off his shirt and went about the business of getting ready for sleep.
"Nice of you to take off your shirt for me."
Take your shirt off and get in front of the mirror.