Is ghusl required when pleasure applied forcelly

While I was sleeping (in partially awakening condition in sleep) on bed on early morning sometimes due to high sexual feelings erections happening and during that time I am slightly pressing my pvt part on bed, then lot of sticky liquid is coming out and touches cloth. But it is not ejaculation. I know this is big problem for me every morning and so I can not go for prayer in morning because I have to take bath and change clothes and wash those clothes. I am trying to stop this completely, but still repeating this issue. In such case Is ghusl required to perform Salah? Do I have to wash clothes? I need advise based on Quran and Our prophet Muhammad.