im 16 and my sister is 29 so we obv have a huge age gap but we r unapologetically ourselves around each other w/ no judgement
it might not be totally comparable bc me and her r family but being authentic can lwk make things funnier anyway. like when she says something dated/ โun-genzโ i make fun of her (JOKINGLY) but at the same time i learn A LOT from her perspective and same goes for her when i talk about stuff sheโs not familiar with
in the end being cool doesnt really matter tbh like im sure this girl dgaf regardless and would be more weirded out if u tried to force something to seem โcoolโ
if u r REALLY struggling to find things to talk about ask her about her for some hot gos cause telling my sister about what crazy shit happened at school that day is like my favorite thing ever