Husband stimulating wife

If my husband stimulates my breast while I keep my legs closed and due to the added pressure of my legs being closed I reach climax, is this allowed? Because it’s very difficult for me to finish with my legs opened, so even though I ensure he finishes with normal vaginal penetration, I need him to stimulate me some other way in order for me to finish and this requires my legs to exert pressure on my private while he massages my breast or something of that sort. I’m not sure if the fact that he is stimulating me makes it okay or whether the fact that I am exerting pressure with my legs at the same time turns it into masturbation. Please advise.