Actor John Estrada cleared speculations that he and on-screen partner Roxanne Guinoo are too sweet to each other.

Estrada, who is now happy with his current romantic relationship with Brazilian beauty Priscilla Meirelles, maintained that he is just a "big brother" to the 23-year-old actress.

"Roxanne calls me Kuya and I treat her like my baby sister. She's sweet, she's honest and she's nice. At wala kaming ibang relasyon kung hindi ako ay kuya niya talaga," he said.

The 36-year-old actor described Guinoo as someone who is very sweet and an honest person.

Estrada admitted that he gets affected every time he is linked to his leading lady.

"Hindi [dahil] naging leading lady ko o nakasama ko sa project ay magkakaroon na ng kulay," Estrada said.

The actor maintained that he is happy with Meirelles.  "We are happy now and we are good.”

 Estrada is part of ABS-CBN's  "Komiks Presents Mars Ravelo's Maruja" with Karylle and Kristine Hermosa.  "Maruja" is set to air on May 2.