It sounds like you think the point of the legs is to squeeze your opponent and push him away from you. Not true. If anything, you would use your closed guard to pull your opponent forward so you could adjust his head to where you wanted it on the side of your ribs. After that, you can use the legs to pull yourself up an inch to provide an extra bit of twist when you corkscrew the guillotine to the side.
So no, no body triangle.