You'll understand this someday.Sex without love? That's a very interesting thought.
But Why do we have to associate sex with love at all? they are two very different things, You don't have sex with everyone you love and you don't love everyone you have sex with. Although I suppose having sex with someone you love might increase the pleasure gained from the act but still there's nothing wrong with having sex with someone whom you have no major emotional attachment with just for the sake of pleasure.
If we consider sex to be an activity we perform with someone only for pleasure then how is it any different from playing Co-Op games with that person? You don't need to be in Love with a person to play cricket with them, So why do we need love for sex?
Hopefully through the proper process.