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A busty German glamour model has shocked her fans with a new "extreme tan" that has turned her fair skin to "dark crispy brown" and made her look "African dark" with just three tanning injections.

Martina Big - who claims her size 32 S breasts are the biggest in Europe - has had tanning injections to turn her white Caucasian skin a deep shade of mahogany brown.

She has no plans of curbing her tanning addiction - Martina says that she wants even more of the melanin increasing injections.

And she admits that she is still using a 50-tube sunbed in her home in Trier, Germany.

(Image: Barcroft Media)

(Image: Barcroft Media)

(Image: Barcroft Media)

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"Nine weeks ago, I had just three tanning injections," Martina said.

"I was not expecting to go so dark but it worked so well. I love it and I really want to push it to the extreme.

"Now I just want to get darker and darker and see what the limits are.

(Image: Barcroft Media) (Image: Barcroft Media) (Image: Barcroft Media)

"I love the contrast of my bright blonde hair and my dark, crispy brown skin.

"I love seeing the reactions of people. I can see their big eyes when I walk past and their shocked faces, thinking 'how is this possible?'

"At first, my fans were irritated saying 'why did you do this?!" but that is because they have never seen a white girl change her skin to African dark before.

(Image: Barcroft Media)

(Image: Barcroft Media) (Image: Barcroft Media) (Image: Barcroft Media)

"But now, they have got used to it, they are excited like me. They say, 'oh, I like your style! Go darker! Go darker!'"

Martina, who claims to be 28, says that she is not trying to change her race and describes the extreme tan as just a part of her quest to become the 'ulimate real-life Barbie bimbo.'"

She still describes herself as a European/Caucasian and says she will not change the colour of her eyes or eyebrows, which she proudly describes as "the only natural things she will keep".

(Image: Barcroft Media) (Image: Barcroft Media)

Martina, whose unique breast implants can be "pumped up" by injecting saline, says she does not think black people would be offended by her look.

"Yes, I have the skin of an African girl.

"But I am not pretending to be a black girl.

(Image: Barcroft Media)

"I'm going to create a unique and exotic Barbie with dark tan, bright blonde hair and exaggerated curves.

"I like this look."

Friends of Martina have been surprised by her decision and she admits even the doctor that administered the injections - whom she will not name - did not recognise her.

(Image: Barcroft Media)

(Image: Barcroft Media)

"In the seventh week after the injections, I went back to see my doctor. I said 'hello' and he looked at me like, huh, who is this in my waiting room? It was very funny.

"He said: 'I have never seen a girl turn so African dark before. Are you sure that you want this?' I told him 'Yes!'

"I love my skin like this. I love the extreme look."

(Image: Barcroft Media)

Former air hostess Martina began modifying her body in 2012 after her boyfriend, Michael, encouraged her to start modelling.

Initially, she had planned to have surgeries to enhance her bust and lips but she soon found herself addicted to changing her body in the extreme.

To date, Martina has spent more than £50,000 on cosmetic surgeries and procedures.

(Image: Barcroft Media) (Image: Barcroft Media)

"At first, I wanted to look like Pamela Anderson or Katie Price. But now, I realise that is not for me. These women are not curvy enough!

"And so now, I am more inspired by Barbie or Jessica Rabbit but I go my own way and am creating my own extreme look."

Martina plans to have a butt-lift later this year and will continue with her tanning project.

(Image: Barcroft Media)

Her boyfriend Michael is so supportive, he even had a course of tanning injections himself.

He said: "I didn't want to go quite as dark as Martina but I support her and like her new look very much.

"It is a great feeling for me to have Martina by my side.

"I am the boyfriend of the woman with the largest breasts in Europe!

(Image: Barcroft Media)

"I hope for the future that Martina will continue inflating her breasts, inflating her lips, getting more tanned and getting big butt implants.

"Martina has this extreme look because she has always followed her heart

"She and I, our dreams are the same and from change to change, Martina just becomes even more beautiful."