Ragini MMS 2, the sequel to the 2011 release Ragini MMS, released on March 21.
"If Ragini MMS 3 will be made, then I would love to be a part of it even if it is a small role," the actor said here at a party for the success of films' hit number Baby Doll.
The party was organised by the composers Meet Bros Anjjan here onTuesday.
Lauding the film's producer Ekta Kapoor, Sunny said: "I think that this brand and franchise which Ekta has created is so big as people are going mad over it from the first movie to the second.
"I think that Ekta has done an amazing job to make this go to the next level - whether it is the songs, acting or story. She is just amazing in everything what she has done for this movie."
Meanwhile, Sunny thanked all her fans for their love and support.
"This movie has gone above and beyond our expectations. Even on a Tuesday night, we are getting good collections and Monday night we had an amazing collection," she said.
"I thank all my fans for their love and support," added Sunny.
Directed by Bhushan Patel, the film has collected approximately Rs. 24.5 crore in three days of its release.