Yes, it is recommended. Purchased this lovely sex doll last month. She’s much better than I expected. I’m really pleased with this doll! Despite the fact that I am not very large, I feel that her vagina is a little tight on me. Another thing I really like is how discretely you may store her in your home. As compared to other dolls, that was the only one that was truly within my means, thus I have no regrets.