The 'Gansta's Paradise' rapper turned on the charm from the moment he woke this morning, whispering to the BB6 finalist as housemates got ready in the bedroom.
"Be careful who you chase," a nearby Chantelle called over, possibly referring to Makosi's long-term partner in the outside world. "Behave yourself."
Later, after Coolio suggested they head to the cameraless toilets, Makosi warned him: "Stop it, you said you were going to be good."
She then proceeded to tease him about the "hot" kilt he wore to enter the house yesterday.
"Did it excite you?" Coolio asked.
"Not really," Makosi answered. "A man in a skirt... I'm African and very conservative."
"I'll bring out your bad side," Coolio promised, as Makosi suggestively replied: "You could try."
"I know I will," Coolio finished, as he rested his head on Makosi's breasts with a content look on his face.
Shortly after the exchange, Makosi confessed to Chantelle that she was "starstruck" when she saw the music star arrive in the house.
"Everywhere you went when ['Gangsta's Paradise'] came out people would be singing it and then he walks in and you're like, 'Oh my god'," she said.
"A lot of people in Africa are going to think that it's cool that I'm in the house with him. He's got a great sense of humour too."
Makosi then agreed with Chantelle's belief that Coolio had a sensitive side hidden underneath all his bravado.
"I think with most rappers they kind of have to have that machoness, but then they forget to turn it off and become just a person. But then when you do look at him, he is very cute," she said.