The colorless sticky fluid mentioned in your post is pre cum (pre ejaculatory fluid), which is mainly composed of Seminal fluid & Cowper's fluid.
It is similar in composition to semen, though there are some chemical differences.
However, studies have also found low levels of sperm in this fluid.
Secretion of this fluid during sexual stimulation is normal & you should not worry about it.
However, colorless sticky fluid coming before & after urination can also be due to infection of the genitourinary tract.
So, if symptoms still persist, it will be better to consult an Urologist
for further management.
Wishing you a Healthy Life.