Rumors have been flying that Rihanna is having a fling with actor Ashton Kutcher. Or should I say WAS…as now he’s being linked to his “That 70’s Show” co-star, Mila Kunis. Either way, RiRi has been pretty mum about the topic since the rumors started, even walking out of an interview when asked about it and ripping a reporter when asked in a different interview. But late last night, she at least acknowledged the chatter…and apparently even her mom finds the Ashton/Rihanna drama funny! Check out her tweet below.