According to TMZ, the answer to that question is YES. A pap reportedly snapped Rihanna visiting Ashton Kutcher’s house for a short 3 hours Wednesday morning, from 1 to 4 am, aka PRIME BOOTY CALL HOURS. Furthermore, MediaTakeout claims that Rihanna had been partying at Colony nightclub earlier in the night:

Rih was having a good time with her girl when, we’re told, she received a TEXT MESSAGE from Ashton Kutcher. Rih IMMEDIATELY dipped out of the club at around 12:00 – leaving her GIRLFRIENDS behind (as you can see above). She then made her way into ASHTON KUTCHER’S house . . . where she stayed, according to our pals over at TMZ, until 4:00 AM.

That’s a booty call we approve of… short, sexy, sweet, and to the point. High fives to everyone!