Sibak is a Filipino word which literally means chop, hack or slice. It is also an idiomatic expression used by Doj Roxas to denote the forceful thrusting of the penis into the vagina or to put it simply, a hard fuck.
When a male is feeling horny he find a hole which is likely to be a pussy (girls sex hole) or the anus (where also used to shit). He then insert the penis into one of these holes and move it in and out first starting slow and gradually increasing speed as more stimulation is required to keep the sexual excitement until it reaches a point where he has to decide from a few options to release white sticky fluid which often shoots out about 9 shots however there are very few people who only dribble 1-3 shots which could indicate a problem.
1. quickly remove the penis and choose some where to cum such as mouth, face ass and many more
2. if the fucking is feeling good continues to move the penis in and out at a rapid rate until you cum inside the hole which could risk having a baby however since it feels very good it is worth the risk.
after the cumshot if the penis continues to be rapidly stimulated it can hurt
14 year old boy fucking a 20 year old girl until the boy accidentally cum inside the girl giving a creampie as get up from his dick his mum walks in watching semen dripping from the hole. He was then grounded until he was 18