threesome?!

ok so I started over bc I stopped watching somewhere a long the line. I guess I missed an episode (watching on Peacock so all different shows are jammed into seasons Life After, Love After, Love During etc). Can anyone help me find the episode where Marcelino, Brittany and Amanda decide to get freaky?! I’m to the part where he dmed Amanda and I totally didn’t even know they had a threesome but I’ve went back several times to try and find it bc I clearly missed an episode or two! Anyone know?!