 My boyfriend loves BJ but I can't do it. I hate the taste it makes me sick. Just eat pineapple, then do it, makes the taste great. Okay this is completely upside down. One, it's not that if your partner has pineapples and then gives you a blowjob that suddenly magically it'll make your semen taste sweeter. It's that you have to have the pineapples so that they get into your body, they change the taste of all of your bodily fluids including your semen and that will make it taste sweeter for your partner when they do it for you too. It's not something that you can do just before sex. It's not like putting on a condom that I'll just drink some pineapple juice and I'm ready to go. It takes about a week to act so you need to have about three to four glasses of pineapple juice every day for several days before it can start to take effect. And finally what is all this pineapple juice going to do for you? Well it's not some kind of miracle. It's not suddenly going to make your semen taste like pina colada but it does make it a little bit sweeter so basically it takes the edge of the taste. So guys if you want your partner to get really enthusiastic about going down on you it's you who need to get the pineapples.