As the way it is...

Lately i've been seeing quite a few ppl..they claimed to be friends......
but actions tell more than what they say about themselves.

I always think those who lack of security and yearn for emotional love would describes the type that prefer casual sex, usually they avoid responsibility and moral restraints as it's a mutual agreement. Either they can't get what they wanted in a relationship so they go out searching for other potential playmates....to their partner.....yep they're JUST friends. I don't think people really mind age that much since it's all about pleasures and getting good at it.

Both parties could still go on with their lives, and still have their own bf/gf.......
interesting....so when your bf/gf tells you that he/she is just a friend~
haha.............well it's up to you to judge! ^^
For those who knows me well.......knows my point of view! ha..

Casual sex - from Wikipedia

Casual sex refers to certain types of sexual activity outside the context of a romantic relationship. The term is not always used consistently: some use it to refer to any extramarital sex, some use it to refer to sex in a casual relationship, whereas others reserve its use for one-time encounters, promiscuity, or to refer to sex in the absence of emotional attachment or love.[1][2]

A hookup (colloquial American English) is casual sex activity that could consist of manual stimulation, oral sex, or sexual intercourse. An extended hookup sometimes refers to prolonged instances of casual sex interactions. This is a situation in which the involved parties occasionally meet for casual sex multiple times, always without a long-term commitment. This is a casual relationship specifically for sex and without any emotional aspect.

[edit] Social norms and moral concerns
Many religions consider sex outside of marriage to be immoral (see Religion and sexuality). People's ideas about casual sex range from conservative religious views (chastity) to liberal views. During the sexual revolution in the United States and Europe in the 1960s and 1970s, social attitudes about sex underwent considerable change. Divorce and abortions became easier to obtain.
The term "hookup" gained popularity and attracted media attention during the late 1990s and has been widely accepted by Generation Y-ers[citation needed].

[edit] One night stand
One night stand is a single sexual encounter between individuals, where at least one of the parties has no immediate intention or expectation of establishing a longer-term sexual or romantic relationship.

[edit] Anonymous sex
Anonymous sex is a form of one night stand or casual sex between people who have very little or no history with each other, often engaging in sexual activity on the same day of their meeting and usually never seeing each other again afterwards.[3]