la petite amie de mon frère
Why do you care? I'm French and if your girlfriend is french, just pretend ! Gawd you just want to say it so you can impress her and you'll get her.
Has two brothers in French is 'a deux frères'. This could be used in a sentence, for example, to say 'She has two brothers': 'Elle a deux frères'.
My other two brothers in French is 'Mes deux autres frères'.
Je t'aime
petite amie
putain salope
my brothers -- mes frères -- "may frehr"
demi-frère
"C'est ma petite copine."
Petite amie. It is feminine.
The way to say "I live my girlfriend" is Je Vis Ma Petite Amie and "I love my girlfriend" J'aime Ma Petite aime
Be my girlfriend translated into French is: être ma petite amie/ma copine. An example sentence using this is: Serez-vous ma copine? This means will you be my girlfriend?