No too tight knots at the beginning. Even if the partner should beg for it. Sometimes it happens that newbies do not get the knots open anymore ... when used correctly, they can pull the knots on their own during the act. That's why there's certainly nothing wrong with it.
Hakuna mafundo yanayobana sana mwanzoni. Hata kama mwenzi anapaswa kuomba. Wakati mwingine hutokea kwamba wachanga hawapati vifungo wazi tena ... wakati unatumiwa kwa usahihi, wanaweza kuvuta vifungo peke yao wakati wa tendo. Ndiyo maana hakika hakuna ubaya wowote.