Is it normal if my boyfriend's semen is chunky?

1) I tried looking for an answer to my question in the archives, but didn't find one. What I want to know is if it is normal that my boyfriend's semen has clumps (I don't know how else to describe it) in it? The semen has never been clumpy before, but the last time I gave him a blowjob, the semen had a chunky consistency to it. Should I be worried that this may be an STD, or is this kind of thing related to other things, and if so, what are they? Thanks.

2) I just realized a few days ago that my sperm comes out in pieces. For example, they are as thick as small boiled rice pieces... is there a concern to worry?


What are the common reasons for condom failure?

I live in Prague, Czech Republic — Europe. Before asking any question, I should tell you that I really appreciate your service. As for my question, I would like to ask you about the most common reasons for condom failure as a contraceptive method. I suppose that the most frequent one is condom breakage. But what are the others? I am especially concerned about pregnancy risk implied by the accidental transfer of sperm in pre-cum to condom by fingers while putting it on.


Are there tests for herpes and genital warts?

I have recently gone to a Planned Parenthood STD Clinic. From what they told me, they tested for everything "curable" (i.e., they did not test for HIV, genital warts, or herpes). I know where to get tested for HIV, but my question is: are there tests for herpes and genital warts? What are the odds of someone having herpes or genital warts and being asymptomatic? I plan to use a condom during intercourse regardless, but must I do the same for oral sex as well? Is there any way of knowing for sure if someone is clean of STDs?