It's probably neither your responsibility nor your business who your sister kisses, unless she's extremely young and/or mentally deficient.
Than stop.
knock her teeth out
stop sleeping with random people!!!
If your boyfriend cannot stop kissing you, it may be a sign of violence. Dump that guy.
Because you're obsessed and are going nuts for him, or he can't stop kissing you. Pheromones, honey. It 's chemistry .
There is no law in the UK to stop kissing. Yes, it is...
Just say to her: "Mom it makes me uncomfortable when your kissing your boyfriend around me." I guarantee she will stop if she's a half decent person.
Yes, yes it is.
No. This sort of behavior is immature, but it is not illegal. You can encourage your sister to avoid people that say such things about her, but otherwise, you can just ignore it.
No that is like sodigusting! Especially if your breath stinks!
YES
Because they have to find food and find materials they need to survive with but u can't do all that if u are kissing another fish, can u?