If a wife buys sexy lingerie to wear for her husband, then it's a gift to him, but it's loaded so there are considerations.
From my own personal experience, my husband has never ever ever complained about money I spend on lingerie that i purchase for him to take off. He doesn't complain about any of the money I spend though, so I guess I'm lucky in that way. I can tell he really likes it when I spend money on something sexy though. There are a number of signs.