It is a personal feeling of mine that when in a relationship, the only person you should show sexual interest in is your partner, unless of course both of you are in to the open relationship/swinging idea with no coercion etc.
I'm currently in a fairly new relationship, but my partner and i were best friends prior and had discussed things such as our feelings around porn, strippers etc. I know he used to watch porn when single, however as soon as we started dating, he voluntarily gave up watching it as he always felt it was also wrong when in a relationship to be looking at someone other than your partner. Likewise i wouldn't watch porn, or the "magic mike" type films as its purely about half naked men acting sexually, and i wouldn't like him watching a film full of crotch thrusting half naked women in just thongs etc.
To be blunt, i'm not pretty. I've been overweight my whole life and have had issues with my eating as a crutch for my mental health, i'm getting there now with sustainable, safe weight loss but its going to take at least another 6 months before i'm a size i will feel comfortable or sexually attractive at. I have a birth defect with my boobs so im not confident about them, i have pcos also so i dont like my body hair, i don't feel beautiful and feminine, i have to remove my dark facial hair on a weekly basis. I have keratosis pilaris on over 50% of my body so my skin is ugly, i scar easily, covered in stretch marks, my hair is a frizz demon, i'm just not conventionally "beautiful" like the typical stripper is. Lets face it, slim/healthy curvy with nice bodies is pretty standard to be a stripper, and thats not what i look like, i'd feel disgusting and ugly if my partner chose to go into a sexual scenario like watching a woman wit ha very different body type to mine take her clothes off for his sexual excitement.
If i was confident in my own looks maybe i would feel differently, but as it is, i feel like a 1/10 where as the average stripper would be at least a 5/10. I don't want to feel second best or like a consolation prize to my partner that they cant get a woman like that as a girlfriend so they take what they can get and pay for the fantasy these women are their girlfriends.