Nick Gordon gets 'Bobbi Kristina' tattoo on his arm

ATLANTA, Feb. 17 (UPI) -- Nick Gordon returned to Twitter to share a tribute to girlfriend Bobbi Kristina Brown on Sunday.

The 25-year-old had "Bobbi Kristina" tattooed on his left forearm, and showed off the new ink in his profile picture. Gordon has several other tattoos, including a portrait of the 21-year-old actress' late mother, Whitney Houston, and her initials, "WH."

"Thank you all for your prayers," he tweeted for the first time since December 2014. "She is a strong person and will pull through this. Continue to pray for her."

Brown remains on life support after being discovered unresponsive in her bathtub Jan. 31. The circumstances of her condition are being examined, and police are reportedly investigating if the actress and Gordon had an altercation before she was found.

Gordon and Brown grew up together and are longtime partners, but are not married, contrary to reports. Gordon broke his silence on the actress last week, and agreed to stay away from the hospital where she lies comatose.

Brown is the only child of actor Bobby Brown and late singer Whitney Houston. Bobby Brown denied his daughter will be taken off of life support this week in a statement Monday, and asked the media to refrain from speaking to extended family members in order to avoid conflicting reports.