Six best friends living in New York got through it together. Of course, Ross and Monica are more then friends. They're siblings. They're like any other brother and sister. On the other hand, there are times they're unlike any siblings. Indeed, they might be a bit too close. It's safe to say that Friends wouldn't be the same without Ross and Monica. At times, they're tight and the best of friends. Other times they're back to being rivals. Indeed, there are times it's like their kids again. At the same time, there are many details fan don't know. These wild details might be a bit alarming. It's time to take a closer look at the Gellers. Here are Friends: 20 Wild Details Behind Ross and Monica's relationship.

20 Ross' Fiance

Monica Friends Via: Odyssey

At one point, Ross and the gang travel to London. He was all set to marry Rachel. No, Emily. Monica does Ross a favor and picks up the wedding dress. She pretends to be Emily and tries the dress on. Monica even wears the dress while washing the dishes. It seems a bit odd that she pretends to his fiance.

19 Ross And Carol's First Time

Friends Ross And Monica metro.co.uk

Ross and Monica are very close. Regardless, there are some details that sisters don't need to know. For instance, Monica knows the date of Ross and Carol's first time. She might know that it's their first date. However, it's easy to see that this means a lot more to Ross. There's a chance she knows the truth.

18 They Share Dating Details

Friends people.com

As noted, Ross and Monica share many details. They're very open about their dating life. They get into great detail about their dates and relationships. At times, Ross does seem a little bothered. On the other hand, he often flirts with women in front of his sister.

17 They Still Wrestle As Adults

Friends Monica Ross Wrestle pinterest.com

It's no secret that Ross and Monica are highly competitive. They both like to win and be right all the time. As kids, they often wrestled and fought each other. Indeed, they both admit that Monica usually won. Regardless, they continue to wrestler even as grown-ups. It appears the fighting never ends.

16 Ross Walks In On Monica Showering

Friends Ross Monica thesun.co.uk

At one point, Phoebe and Monica attempt to play with a dollhouse. Of course, Monica's not good at sharing. Later, Phoebe makes her a dollhouse as well. It catches on fire, and Ross struggles to put it out. The only thing he can think of is running into the shower. Well, Monica's in the middle of a shower when Ross does so. It seems a bit odd that he would choose that option.

15 Ross Watches Chandler And Monica

Friends Ross Monica Chandler friendswikia.com

When Monica and Chandler start dating, they keep it a secret from the rest. Of course, soon it starts getting out. There's just one last person that doesn't know, Ross. Not only he is Monica's brother, but he's also Chandler's college friend. Ross ends up finding out when he watches them kiss from across the street. He does flip out until he finds out they're in love.

14 Monica Was Really Into Rachel And Ross Kissing

Friends marieclaire.com

Ross and Rachel's romance was the heart of the show. There wasn't a person in the world that wasn't happy the first time they kiss. Monica was one of those people. However, she wanted to know every single detail. It seems odd that she wants to know details about kissing her brother.

13 Monica Gets Personal

Friends Monica

Ross always enjoys pulling pranks on Monica. He still does it when they're grown-ups. He tricks Monica into thinking her boyfriend calls, but it's their mother. She ends up sharing personal details with her mom. She feels embarrassed and gets mad at Ross. Of course, it does seem odd to talk about that in front of her brother.

12 They're Openly Intimate

Friends Chandler Monica Ross friends.wikia.com

Ross and Monica have no problem being intimate with their partners in front of each other. For most siblings, this would cause awkwardness. Well not for the Gellers. Indeed, they kiss and get physical in front of the other. As noted, Ross sometimes states his awkward feelings. Of course, that only happens on the rarest of occasions.

11 Monica Listens To Charlie And Ross

Friends Ross And Charlie youtube.com

Monica and Ross need to set boundaries. For instance, Monica listens in on Ross with Charlie in his hotel room. Of course, part of the reason was Charlie was with Joey at the time. Monica and the rest didn't realize they broke up. It does seem strange that she listens to her brother with a woman. She does realize her mistake and switches walls.