Summarize the following:
This should make it clear that you want to be more than the booty call. If you've been having sex with someone, but you rarely see each other outside of that, raise the subject of spending time together without sex. Ask the person if they want to go get lunch or dinner, see a movie, or do something else that involves interacting without getting physical. If someone views you as just a booty call, they may leave after sex. If you want to show them you're interested in more, ask them to spend the night at your place.  Invite them to stay over. If they ask to come over after work, say something like, "That would be fun. Do you want to stay over this time? It would be nice to spend some more time together." There's always a chance the person will decline. This may be a sign to you that it's time to move on. If someone is unwilling to spend a night with you, they may be more interested in an occasional booty call than a real relationship. If someone does not know what you want, they may think you're okay with just being the booty call. After you've seen someone a few times, introduce the issue of what you personally want out of a relationship. If something casual is not your thing, let them know. If they call you up for what seems like a booty call, redirect this.  For example, say you get a text late at night asking if you want to come over. Respond with something like, "I'd rather do something another time. Are you free for lunch or dinner this week?" This shows the person you're not interested in just being the booty call and would rather get to know them. If the person does not respond to the text, they may not be interested in a real relationship. At this point, you've both made it clear what you want. While it can hurt to have someone disengage with you, at least you know you're free to look for someone interested in a real relationship. If you find being the booty call hurtful, or feel that you're being used, say so. You're well within your right to express yourself if you're feelings are hurt, especially if you're being led on. If someone continually assures you you're more than just a booty call, but does not treat you accordingly, speak up.  For example, say you've made it clear you do not want to be the booty call. Despite this, the person keeps calling and texting late at night. While they promise they'll take you out on a real date, they keep blowing you off and changing plans. At this point, say something. Say something like, "I've made it really clear this isn't the kind of relationship I want and I feel like you keep violating my boundaries. This is really hurtful and it isn't okay."

Summary:
Ask to spend time together without having sex. Request that they spend the night. Let the person know what you want out of relationship. Express yourself when you feel hurt.