7 year Old Girl being Fresh

Ok Guys,
So I literally signed up just to bounce ideas off other parents....My 7 year old daughter is the youngest of my kids and is full of energy...loves dancing, playing her tablet, talking, etc....Again, she is full of energy, spunk, and sassiness...

But lately, she has become both: very affectionate towards me, but then very insulting. For instance, she loves cuddling and spending time with me and LOVES doing projects etc...but then in a blink of an eye can be very nasty, pouty, and 'mean.' We were playing uno with the rest of the family and BOOM-"I hope Mom loses....."

Last, I don't know if its just me, but she has become inappropriate. I notice things like if she eats something (banana, lollipop, popsicle-she puts her whole mouth on it) or she won't wear any clothes after getting out the shower and IM LIKE WHAT DO YOU THINK YOURE DOING? WE DONT ACT LIKE THAT.

Is this normal? I have 2 other children and this was never a thing. She is very observant, smart, and witty-so I feel like she knows that this is inappropriate but she does it anyway.....

HELP! We are at a stage where she doesn't get punished for this, but it has become noticeable to me.

Can you explain the lolipop/bananna thing a little more so I understand?

It sounds like she may be getting abused, or perhaps exposed to online porn somehow? Her being mean to you, i would say shows she is angry at you for something, by the rest of the story i would guess for not protecting her from whatever is happening, or whoever is doing it. But she feels like she herself is losing.

I would ask her about her behaviors (eg: instead of interrupting them or judging them which is, for parents, a totally normal response...)---ask more about things she does (in school, with friends, etc) and thinks about. She is old enough for this and is clearly looking for a response from you (vs a reaction---or, she may be looking for a reaction but she needs a thoughtful response(
You describe this as a change. This makes it significant. At 7yo kids also start to notice that words can have more than one meaning, they may begin to "get" jokes they did not before, or see the "double meaning" in behaviors or words----so there is an awareness of sexuality without real understanding except that it is "a Big Thing" in our world.

I'll never forget the evening my son got a double entrende on the bbc comedy 'Keeping Up Appearances'----------his eyes got huge and he turned to me and said MOM?! (his sister, a year younger was angry he wouldn't explain it to her)-----------he picked up on the reference to "Mrs. Slocum's *****"(cat).

Hug her and tell her to stop is this a huge deal to were u are calling all family members? Don't retraumatize her unless you really have to. I tend to think on a forum is a feed up point but what if this isn't your tendency ...I would seek a counselor. I guess a book savvy computer person would do this.