Not necessarily, but you exchange energies with every person you have sex with. This is why people who have never had sex are lonely, as they have never opened up to other people's energies, but there are people on the other hand whose life is chaotic because they have had sex with dozens, if not hundreds of people, especially women. They are broken and it's evident.
But having sex with a jew even once is like inviting a jew's energies to your body, because it literally is. They will suck all your energy and leave you in shambles, so the Gentile is the loser in this situation. But most jews are unattractive, so there's no reason to even have sex with one in the first place. The average Gentile woman is much more beautiful than a "pretty" kikess.