I have been happily married for over 15 years and my wife and I have been sexually active. I know her body and she knows mine. Just last week we had sex and I found out that her vagina was unusually deep. We use sex toys and they disappeared in her. This has not happened in all the years we have been married. My initial reaction is that she had penetration and most probably cheated on my. She says it is normal for a woman s body to have these changes. It was like that for only two days and now back to normal. Is it really normal or what happened?