Why does my daughter flirt with my partner ?

taylor-84
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I am 31 years old, my partner is 32 years old we have been together for almost 5 years now our relationship is great at least that`s what I feel. I have 3 great children 2 girls (13) (16) and a son (8) from a past relationship. However whenever my partner and I go to my mothers house for dinner or just to visit my 16 year old displays lucrative sexual behavior toward my partner meaning she will come in the kitchen and do things like go to the fridge open the door and turn around to stare and smile at him till he looks at her , bending over the case of pop taking like 5 minutes just to get a pop out of the case ...I figure she wants him to stare are her bent-over ...bottom line here is she won't leave the room till he stares at her; then she will look at me and smile ..I m like WTF is going on here ? you can fee it in the air ...the tension is thick, un-comfortable note she does this sh*t while her boyfriend 15 is over.. example last week we went for dinner my oyfriend and I were sitting in the kitchen when it was time to eat she waved her boyfriend to come eat when he walked in the kitchen, I silently heard my daughters boyfrined say " you said I`m not allowed in here " so I said out loud what ? why are you not allowed in the kitchen ? my daughter raised her voice and I was only joking ..now I think why cause I m in here ? could my daughter be jealous of me ? I m not the greatest thing but I am beautiful I m 115 lbs and cup size E-F --being she is very small chested ..but my main question is why does she display such lucrative behavior toward my partner ? does she resent me? who knows I m so confused, I have not called her on anything yet but we can't even visit its that bad and things need to STOP also I m almost 4 months pregnant now and can't go on anymore ..I feel like she has no respect for me ...idk just the thought of my mom and her by would gross me out let alone would I want the man looking me in a sexual manner ! HELP
Why does my daughter flirt with my partner ?
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