All The Babes
Helenka Demidova
Also known as Olena Onyshchenko
Career
Active 2020 – present
Biography
About Helenka Demidova
At 5'5" with a slim build, Helenka Demidova stands out in the adult modeling world. The Kyiv-born Ukrainian, who has been active since 2020, has built a significant following on Instagram, with 1.2 million followers. Her measurements are 34–25–36, and she wears a 34G bra cup size.
Helenka has posed for 14 covers, 6 photosets, and 8 videos. She also posts to her OnlyFans account. With her black hair and brown eyes, she has established herself as a recognizable figure in the industry. She continues to work as an adult model and influencer.
Record
Profile details
Personal
- Years Active
- 2020-present (started around 28 years old; 6 years active)
- Birthplace
- Kyiv, Ukraine
- Ethnicity
- Caucasian
- Sexuality
- Straight
Body
- Hair Color
- Black
- Eye Color
- Brown
- Weight
- 120 lbs (or 54 kg)
- Measurements
- 34–25–36 (B–W–H) · WHR 0.69
- Bra/Cup Size
- 34G show conversions - UK: 34FF, EU: 75G, AU: 12G, JP: 75G
- Boobs
- Fake/Enhanced
Extra
- Instagram Followers
- 1.2m (as of May 2026)
Frequently asked
What is Helenka Demidova's nationality and birthplace?
She is Ukrainian and was born in Kyiv, Ukraine.
How long has she been active in the adult modeling industry?
She started around age 28 and has been active for about 6 years, from 2020 to the present.
What is her bra cup size and are her breasts enhanced?
Her bra cup size is 34G, and she has had breast enhancement surgery.
Did you know
- Despite being slim, her measurements include a 34G bra cup size, which she has enhanced.
- She has been active since 2020, starting her career at age 28.
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