He made headlines worldwide in 2015 after a video went viral showing him weighing his manhood to prove its authenticity.
His half-metre p3nis smashed the record previously believed to have belonged to American actor Jonah Falcon, whose p3nis was 9.5 inches flaccid, and 13.5 inches when erect.
"I am happy with my p3nis, I know nobody has the size I have. I would like to be in the Guinness Book of Records but they don’t recognise this record."
But despite his pride, members of the medical community have urged him to at least consider a penile reduction.
Doctor Jesus David Salazar Gonzalez said: “We have advised him 'Mr Roberto, the best thing for you is that the doctors give a normal shape to your penis so that it doesn’t hurt you, in order to have sexual relationships, in order to have children.'
"But he doesn’t accept it, he’d rather have a p3nis bigger than the rest of the people.
Dr Jesus David Salazar Gonzalez said: "He was obsessed with the p3nis length.
“He began with this enlargement since he was a teenager, wrapping some bands around his p3nis with some weights and trying to stretch it."
The sheer size of Roberto’s p3nis causes him a number of health problems, including frequent urinary tract infections because not all his urine escapes his lengthy foreskin, and he keeps his colossal member wrapped in bandages to escape chaffing.
He is also unable to sleep chest down and has to put his p3nis on its own pillow to escape discomfort during the night.
An active s3x life is also off limits for Roberto as his p3nis has too much girth to have intercourse.
He said: “Some people ask me if I put some condoms on it and the answer is: I cannot. I can never penetrate anyone because it is too thick."
While living in the USA, Roberto did attempt to have s3x twice, but the first woman backed out as soon as she saw his p3nis and the other one had to stop because it was too painful.