Been hanging out with him for 3 days, now what?

So me & this guy have been hanging out 3 days in a row and its obvious that he likes me but he hasn't asked me out..then again we just started talking and I told my friends I would be with him so I didn't hang out with my friends..anyways my friends &I really didn't have anything planned but should I tell him I want to hang out with my friends ..I don't wanna turn him off ,I like him but I don't wanna leave my friends behind,you get me.how could I tell him in a sweet way without him feeling rejected ..I just don't want him to get bored of hanging out with me all the time.
Been hanging out with him for 3 days, now what?
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