NSFW - Does having a great time in bed with somebody lead to feelings of love?

A friend of mine was asked by a woman he was about to have sexual relations with ( casually ) if he would prefer to kiss when they do it or not. When he asked her to explain why she asked that question, she said if they did, they might end up developing real feelings for each other. Something both of them cannot do. It’s not part of the plan for reasons I won’t elaborate. So there it is. What do you think?