Robert Pattinson was given a big G-string while filming the sex scenes with Kristen Stewart in the latest instalment of the Twilight franchise, which he admits was too small for him.The 25-year-old actor also revealed that the male underwear “was like an old ham” and wasn’t up to scratch.“I just ended up thinking purely about vanity things. You’re sitting there in a little G-string. They give me a big G-string — but it was too small for me. It was like old ham,” The Sun quoted him as saying.As for the odd props used in The Twilight Saga: Breaking Dawn Part 1, the special effect department decided to raid the kitchen cupboards while creating the scene for Bella giving birth, to make the gore seem more real.“It was terrifying going into it. It was one of the most incredible scenes to do in this movie. Because of the violence in it, it gave you freedom in scene and having every character so desperate,” he said.“But I’m also stuck between emaciated dummies’ legs, chewing through a placenta and getting cream cheese all over your face with strawberry jam and pulling out a three-week old baby with a wig on,” he added.It is being touted as the steamiest Twilight film so far.It's based on the controversial fourth novel in Stephanie Meyer's Twilight series.The movie is all set to be released on 18th November.